terryf
Member
Is pretty much what Ive been having the past three weeks.
At first the turning went well, no worries, then about three weeks ago almost everything I turned from wood to acrylic would just blow out.
Obviously segmented was the worst but it even happened sanding at 1200 grit right at the end so it was obviously not just isolated to one action.
I found a couple of guys who have turned pens and picked their brains. The response echoed two problems -
1. My lathe speed is incorrect.
2. Tools are not sharp enough (or incorrectly sharpened)
My lathe runs at 2500 rpm. The tools are clearly a problem and one that is easily fixable.
My questions are hence the following -
1. What speed should my lathe be turning at?
2. What tools are recommended? (HSS/carbide tipped etc)
3. At what angle should tools be sharpened at?
Im currently resorting to sanding the blank down almost completely on the sander and then just rounding the blank on the lathe and then sanding. This works well on softer woods (kiaat)but the minute I go to anything remotely harder it blows out.
Now I must mention that I have turned acrylics with no problem in the past as well as the harder woods like rose/walnut etc
Any and all help would be most appreciated.
Cheers
Terry
Ps. Attached photo of a few of the blow outs - had a total of nine consecutive which I'm sure is some kind of record :frown:
At first the turning went well, no worries, then about three weeks ago almost everything I turned from wood to acrylic would just blow out.
Obviously segmented was the worst but it even happened sanding at 1200 grit right at the end so it was obviously not just isolated to one action.
I found a couple of guys who have turned pens and picked their brains. The response echoed two problems -
1. My lathe speed is incorrect.
2. Tools are not sharp enough (or incorrectly sharpened)
My lathe runs at 2500 rpm. The tools are clearly a problem and one that is easily fixable.
My questions are hence the following -
1. What speed should my lathe be turning at?
2. What tools are recommended? (HSS/carbide tipped etc)
3. At what angle should tools be sharpened at?
Im currently resorting to sanding the blank down almost completely on the sander and then just rounding the blank on the lathe and then sanding. This works well on softer woods (kiaat)but the minute I go to anything remotely harder it blows out.
Now I must mention that I have turned acrylics with no problem in the past as well as the harder woods like rose/walnut etc
Any and all help would be most appreciated.
Cheers
Terry
Ps. Attached photo of a few of the blow outs - had a total of nine consecutive which I'm sure is some kind of record :frown: